I am developing a website that will contain interactive exercises to help students in an introductory programming course that uses Java. I have developed one set of exercises that deal with boolean expressions. You will be asked to log on, but you don't need a password; just hit the "log on" button.

Please take a look at it and give me your feedback. Be sure to look at the last part of that set of exercises, dealing with "boolean tyros". Thanks.

I am now developing exercises that deal with loop invariants, in the hope that such exercises will help students learn what loop invariants are and how to develop and use them.